A new report from Symantec security researchers contends that Microsoft's much-awaited Vista operating system could harbor a range of vulnerabilities that will make it less secure than previous iterations of Windows. According to research published July 18 by Symantec, a number of Vista's software components, specifically a handful of protocols related to its redesigned networking technologies, could become security loopholes if Microsoft does not fix the problems or ensure that the product is configured appropriately to hide the glitches when it is shipped.